watson has 4 blue cars, 7 red cars, 9 tractors, and 11 police toy cars on the floor. What is the probability that watson's mom will find a police car on the floor, pick it up, and then a tractor on the floor, if he already picked up a red car, a blue car, and a tractor

Me solve this problem, and someone clearly explain to me how to solve it.1.) use the value of the discriminant to determine if the given trinomials has 2 real solutions, 1 real solution, or no real solutions.a.  x2  − 4x  − 7 = 0b. 4r2  + 11r  − 3 = 0c. 3m2  + 7 = 0d.  t2  + 2t  + 1 = 0

Item 1 solve for s. s+24=90 −114 −66 66 114

The coordinates of vortex a’ are (8,4) (-4,2) (4,-,4) the coordinates of vortex b’ are (6,6)(12,-,12)(12,12) the coordinates of vortex c’ are(-2,,12)(4,12)(12,-4)